CN113499128A - Nerve block pjncture needle under ultrasonic guidance with outside guiding mechanism - Google Patents
Nerve block pjncture needle under ultrasonic guidance with outside guiding mechanism Download PDFInfo
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- CN113499128A CN113499128A CN202110779327.3A CN202110779327A CN113499128A CN 113499128 A CN113499128 A CN 113499128A CN 202110779327 A CN202110779327 A CN 202110779327A CN 113499128 A CN113499128 A CN 113499128A
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- 230000007246 mechanism Effects 0.000 title claims abstract description 16
- 210000005036 nerve Anatomy 0.000 title claims abstract description 16
- 238000001802 infusion Methods 0.000 claims description 34
- 238000001179 sorption measurement Methods 0.000 claims description 15
- 230000006835 compression Effects 0.000 claims description 10
- 238000007906 compression Methods 0.000 claims description 10
- 239000000696 magnetic material Substances 0.000 claims description 3
- 238000012546 transfer Methods 0.000 description 7
- 238000003780 insertion Methods 0.000 description 5
- 230000037431 insertion Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 239000003814 drug Substances 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 229940079593 drug Drugs 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 125000006850 spacer group Chemical group 0.000 description 2
- 210000001124 body fluid Anatomy 0.000 description 1
- 239000010839 body fluid Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000009958 sewing Methods 0.000 description 1
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/34—Trocars; Puncturing needles
- A61B17/3403—Needle locating or guiding means
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/34—Trocars; Puncturing needles
- A61B17/3401—Puncturing needles for the peridural or subarachnoid space or the plexus, e.g. for anaesthesia
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/34—Trocars; Puncturing needles
- A61B17/3494—Trocars; Puncturing needles with safety means for protection against accidental cutting or pricking, e.g. limiting insertion depth, pressure sensors
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
- A61M5/158—Needles for infusions; Accessories therefor, e.g. for inserting infusion needles, or for holding them on the body
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/34—Trocars; Puncturing needles
- A61B17/3403—Needle locating or guiding means
- A61B2017/3413—Needle locating or guiding means guided by ultrasound
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
- A61M5/158—Needles for infusions; Accessories therefor, e.g. for inserting infusion needles, or for holding them on the body
- A61M2005/1587—Needles for infusions; Accessories therefor, e.g. for inserting infusion needles, or for holding them on the body suitable for being connected to an infusion line after insertion into a patient
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Surgery (AREA)
- Public Health (AREA)
- Animal Behavior & Ethology (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Veterinary Medicine (AREA)
- General Health & Medical Sciences (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Molecular Biology (AREA)
- Pathology (AREA)
- Medical Informatics (AREA)
- Anesthesiology (AREA)
- Vascular Medicine (AREA)
- Hematology (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The invention provides an ultrasonic-guided nerve block puncture needle with an external guide mechanism, which relates to the technical field of needles and comprises a needle body and a guide device, wherein a transfusion tube is sleeved at one end of the needle body, the guide device is arranged at one side of the needle body and comprises a positioning sheet and a magnetic sheet, the positioning sheet is sleeved on the needle body, the inner wall of the positioning sheet is rotatably connected with a limiting ball, a sliding hole is formed in the surface of the limiting ball, and the needle body penetrates through the sliding hole and is in sliding connection with the inner wall of the limiting ball. According to the invention, the guiding device is arranged, so that the angle position of the needle head can be conveniently adjusted, the situation that most traditional puncture needles are used only in an inserting mode and are difficult to finely adjust in use and position pricking errors are easy to occur is avoided, the failure rate of the operation is reduced, the potential safety hazard of the operation is reduced, the usability of the device is improved, and the normal use of the device is facilitated.
Description
Technical Field
The invention relates to the technical field of needles, in particular to an ultrasonic-guided nerve block puncture needle with an external guide mechanism.
Background
The needle is a slender tool for sewing the clothing lead, one end of the needle is sharp, and the needle is mostly a metal product and is commonly used in production and life.
Puncture needles are often used for detecting physical conditions of patients, most puncture needles are used only in an insertion mode, fine adjustment of the puncture needles is difficult to perform in use, and the situation of position error is easy to occur, so that the failure rate of an operation is increased, the potential safety hazard of the operation is increased, the usability of equipment is reduced, and the normal use of the equipment is not facilitated Therefore, the puncture needle is easy to move when the infusion tube is replaced, and the operation of the replacement process is complex.
Disclosure of Invention
The invention aims to solve the problems that in the prior art, most puncture needles are used only in an inserting mode, fine adjustment is difficult to perform in use, and position error is easy to occur, so that the failure rate of the operation is increased, the potential safety hazard of the operation is increased, the usability of equipment is reduced, and the normal use of the equipment is not facilitated.
In order to achieve the purpose, the invention adopts the following technical scheme: an ultrasonic-guided nerve block puncture needle with an external guide mechanism comprises a needle body and a guide device, wherein a transfusion tube is sleeved at one end of the needle body, the guide device is arranged on one side of the needle body and comprises a positioning sheet and a magnetic sheet, an anti-falling device is arranged on the surface of the transfusion tube, one end, away from the transfusion tube, of the anti-falling device is fixedly connected with the surface of the needle body, an annular plug cap is inserted and connected in a pluggable manner at one end, facing the transfusion tube, of the needle body, the outer side of the plug cap is connected to one end of a flexible strip, the other end of the flexible strip is fixed on the needle body, and the outer edge of a plug cap body is a hollow layer;
the spacer cover is established on the needle body, the inner wall of spacer rotates and is connected with spacing ball, the slide opening has been seted up on the surface of spacing ball, the needle body runs through the slide opening and places rather than inner wall sliding connection, the magnetic sheet is located one side of needle body: the number of the magnetic sheets is two, the two magnetic sheets are symmetrically arranged by taking the needle body as a symmetry axis, the upper surfaces of the magnetic sheets are fixedly connected with a pull handle, the inner walls of the magnetic sheets are inserted and connected with a slide rod in a sliding manner, the lower surfaces of the slide rod are fixedly connected with a slide block, the slide block is hemispherical, the upper surface of the slide block is fixedly connected with a compression spring, one end, away from the slide block, of the compression spring is fixedly connected with the surfaces of the magnetic sheets, a plurality of grooves are annularly formed in one side, facing the slide block, of each positioning sheet in an equiangular manner, the lower surface of each magnetic sheet is rotatably connected with two symmetrically arranged idler wheels, a magnetic ring is sleeved and fixedly connected on the needle head, the magnetic sheets and the magnetic ring are mutually magnetically attracted, one side, away from the infusion tube, of each positioning sheet is fixedly connected with a plurality of adsorption sheets, and the adsorption sheets are circumferentially arranged by taking the circle center of each positioning sheet as a center;
the anticreep device includes the anticreep frame, the anticreep frame rotates with one side that the transfer line is close to the needle body and is connected, the fixed surface of anticreep frame is connected with torsion spring, torsion spring keeps away from the one end and the transfer line fixed connection of anticreep frame, the surface of needle body is connected with the bellied anticreep pole that inclines down in the slant, the fixed surface of anticreep frame is connected with the stay cord, the one end fixedly connected with lantern ring of anticreep frame is kept away from to the stay cord, the lantern ring cover is established on the transfer line and rather than sliding surface connection, the fixed surface of transfer line is connected with and supplies the stay cord to pass sliding connection's guide frame.
Preferably, the number of the adsorption sheets is seven. The limiting ball is made of a non-magnetic material. Each groove is 1/3 spherical. The surface of the guide frame is provided with a sliding groove, and the pull rope is connected with the inner wall of the sliding groove in a sliding mode.
Compared with the prior art, the invention has the advantages and positive effects that,
1. in the invention, by arranging the guide device, before using the device, the positioning plate is aligned with a region needing operation and pressed, the adsorption plate is adsorbed on the body surface of a patient, the needle body is inserted into the limiting ball and inserted into the patient, when the angle of the needle body is adjusted, the roller is abutted against the surface of the positioning plate, the pull handle is pulled to drive the magnetic plate to displace, under the attraction of the magnetic plate and the magnetic ring, the magnetic ring drives the needle body to adjust the angle, the pull handle is pressed to drive the positioning plate to rotate, the slide block pushes the slide rod under the stress, the compression spring is deformed under the stress to generate elastic force, the position of the magnetic plate is finely adjusted, the position of the needle body inserted into the body can be judged according to the insertion angle of the insertion depth of the needle body, the angle position adjustment of the needle head is convenient by arranging the guide device, the situation that most of the traditional puncture needles are used only in an inserting mode and are difficult to finely adjust the puncture position easily occurs when in use, thereby reducing the failure rate of the operation, further reducing the potential safety hazard of the operation, improving the usability of the equipment and facilitating the normal use of the equipment.
2. According to the anti-loosening device, when the infusion tube is connected, the lantern ring is pulled in the direction away from the needle body, the lantern ring immediately pulls the anti-loosening frame through the pull rope, the torsion spring is stressed and deformed to generate elasticity, the infusion tube is immediately sleeved on the needle body, the lantern ring is loosened after connection is completed, the torsion spring loses constraint to drive the anti-loosening frame to reset, the anti-loosening frame is immediately sleeved on the anti-loosening rod, when the pressure of the joint of the infusion tube and the needle body is too high in the infusion process, the anti-loosening frame abuts against the anti-loosening rod, equipment is prevented from loosening, the anti-loosening device is arranged, connection between the infusion tube and the needle body is effectively established, the situation that the infusion tube and the needle body are easily loosened due to too high stress of the joint is avoided, the fault rate of the equipment is further reduced, and the stability of the equipment is improved.
3. According to the invention, the transfusion tube with different liquid medicines can be safely and quickly replaced after the puncture needle reaches the target depth and the target inclination angle by virtue of the plug cap with the flexible handle part and the hollow layer which are specially designed and the detachable anti-falling device.
Drawings
FIG. 1 is a schematic perspective view of an ultrasonically guided nerve block puncture needle with an external guide mechanism according to the present invention;
FIG. 2 is a schematic structural view of FIG. 1 of an ultrasonically guided nerve block puncture needle with an external guide mechanism according to the present invention;
FIG. 3 is a schematic structural diagram of a guiding device in an ultrasound-guided nerve block puncture needle with an external guiding mechanism according to the present invention;
FIG. 4 is a schematic view of the structure at the point A in FIG. 3 of an ultrasonically guided nerve block puncture needle with an external guide mechanism according to the present invention;
fig. 5 is a partial schematic structural view of fig. 3 of an ultrasonically guided nerve block puncture needle with an external guide mechanism according to the present invention.
Illustration of the drawings: 1. a transfusion tube; 2. a needle body; 3. a guide device; 31. a magnetic sheet; 32. an adsorption sheet; 33. a limiting ball; 34. positioning plates; 35. a slider; 36. pulling a handle; 37. a slide bar; 38. a roller; 39. a magnetic ring; 4. an anti-drop device; 41. an anti-drop rod; 42. an anti-drop frame; 43. a torsion spring; 44. pulling a rope; 45. a guide frame; 46. a collar.
Detailed Description
In order that the above objects, features and advantages of the present invention can be more clearly understood, the present invention will be further described with reference to the accompanying drawings and examples. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and thus the present invention is not limited to the specific embodiments of the present disclosure.
As shown in fig. 1-5, an ultrasound-guided nerve block puncture needle with an external guide mechanism comprises a needle body 2 and a guide device 3, wherein an infusion tube 1 is sleeved at one end of the needle body 2, the guide device 3 is arranged at one side of the needle body 2, the guide device 3 comprises a positioning plate 34 and a magnetic sheet 31, an anti-falling device 4 is arranged on the surface of the infusion tube 1, one end of the anti-falling device 4, which is far away from the infusion tube 1, is fixedly connected with the surface of the needle body 2, an annular plug cap is inserted and connected onto one end of the needle body 2, which is towards the infusion tube 1, in an inserted and pulled manner, the outer side of the plug cap is connected to one end of a flexible strip, the other end of the flexible strip is fixed on the needle body 2, and the outer edge of the plug cap body is a hollow layer;
locating plate 34 cover is established on needle body 2, the inner wall of locating plate 34 rotates and is connected with spacing ball 33, the slide opening has been seted up on the surface of spacing ball 33, needle body 2 runs through the slide opening and places rather than inner wall sliding connection, magnetic sheet 31 is located one side of needle body 2: the number of the magnetic sheets 31 is two, the two magnetic sheets 31 are symmetrically arranged by taking the needle body 2 as a symmetry axis, the upper surface of the magnetic sheet 31 is fixedly connected with a pull handle 36, the inner wall of the magnetic sheet 31 is inserted and connected with a sliding rod 37 in a sliding way, the lower surface of the sliding rod 37 is fixedly connected with a sliding block 35, the sliding block 35 is hemispherical, the upper surface of the slide block 35 is fixedly connected with a compression spring, one end of the compression spring, which is far away from the slide block 35, is fixedly connected with the surface of the magnetic sheet 31, a plurality of grooves are annularly arranged at equal angles on one side of the positioning plate 34 facing the sliding block 35, the lower surface of the magnetic sheet 31 is rotationally connected with two symmetrically arranged rollers 38, the needle head is sleeved and fixedly connected with a magnetic ring 39, the magnetic sheet 31 and the magnetic ring 39 are mutually attracted magnetically, one side of the positioning piece 34, which is far away from the infusion tube 1, is fixedly connected with a plurality of adsorption pieces 32, and the adsorption pieces 32 are circumferentially arranged by taking the circle center of the positioning piece 34 as the center;
The following will specifically describe the specific arrangement and function of the guide means 3 and the anti-slip means 4.
As shown in fig. 1 and 5, the guiding device 3 includes a positioning plate 34 and a magnetic sheet 31, the positioning plate 34 is sleeved on the needle body 2, an inner wall of the positioning plate 34 is rotatably connected with a limiting ball 33, a sliding hole is formed on the surface of the limiting ball 33, the needle body 2 penetrates through the sliding hole and is slidably connected with the inner wall of the sliding hole, the magnetic sheet 31 is positioned on one side of the needle body 2, the lower surface of the magnetic sheet 31 is rotatably connected with two rollers 38 which are symmetrically arranged, a magnetic ring 39 is sleeved and fixedly connected on the needle body, the magnetic sheet 31 and the magnetic ring 39 are mutually magnetically attracted, and the magnetic sheet 31 is conveniently adsorbed by the magnetic sheet 31 so as to adjust the position of the needle body 2.
The number of the magnetic sheets 31 is two, the two magnetic sheets 31 are symmetrically arranged by taking the pin body 2 as a symmetry axis, and the upper surface of the magnetic sheet 31 is fixedly connected with a pull handle 36, so that the pull handle 36 is conveniently pulled to drive the magnetic sheet 31 to move.
The inner wall of the magnetic sheet 31 is inserted and slidably connected with a sliding rod 37, the lower surface of the sliding rod 37 is fixedly connected with a sliding block 35, the sliding block 35 is hemispherical, the upper surface of the sliding block 35 is fixedly connected with a compression spring, one end of the compression spring, far away from the sliding block 35, is fixedly connected with the surface of the magnetic sheet 31, and is convenient for adjusting the angle of the magnetic sheet 31 through the sliding block 35 and the sliding rod 37 and fine-adjusting the state of the needle body 2.
The side of the positioning plate 34 far away from the infusion tube 1 is fixedly connected with a plurality of adsorption plates 32, and the plurality of adsorption plates 32 are arranged in a circle by taking the positioning plate 34 as a circle center, so that the positioning plate 34 can be conveniently fixed on the body of a patient through the adsorption plates 32.
In addition, seven pieces can be selected as the adsorption sheets in the present application. The limiting ball is made of a non-magnetic material. Each groove is 1/3 spherical. The surface of the guide frame is provided with a sliding groove, and the pull rope is connected with the inner wall of the sliding groove in a sliding mode.
The whole guiding device 3 achieves the effects that by arranging the guiding device 3, before using the device, the positioning sheet 34 is aligned with the area needing operation and pressed, the adsorption sheet 32 adsorbs the positioning sheet 34 on the body surface of a patient immediately, the needle body 2 is inserted into the limiting ball 33 and is inserted into the body of the patient, when the angle of the needle body 2 is adjusted, the roller 38 is abutted against the surface of the positioning sheet 34, the pull handle 36 is pulled to drive the magnetic sheet 31 to displace, under the attraction of the magnetic sheet 31 and the magnetic ring 39, the magnetic ring 39 drives the needle body 2 to adjust the angle, the pull handle 36 is pressed, the pull handle 36 immediately drives the positioning sheet 34 to rotate, the slide block 35 is forced to push the slide rod 37, the compression spring is stressed to deform to generate elastic force, the magnetic sheet 31 finely adjusts the position of the magnetic ring 39 immediately, the position of the needle body 2 inserted into the body can be judged by matching the insertion angle through the insertion depth of the needle body 2, the guiding device 3 is arranged to facilitate the adjustment of the angle position of the needle head, avoid the most pjncture needles of tradition only to use through inserting the mode of establishing, be difficult to finely tune it in the use and easily appear the condition that the position pricked the mistake, and then reduce the failure rate of operation, and then reduce the potential safety hazard of operation, improve equipment's ease for use, the normal use of the equipment of being convenient for.
As shown in fig. 1 and 4, an anti-drop device 4 is disposed on the surface of the infusion tube 1, and one end of the anti-drop device 4 away from the infusion tube 1 is fixedly connected to the surface of the needle body 2 to prevent the infusion tube 1 from dropping.
The surface of the infusion tube 1 is fixedly connected with a guide frame 45, the surface of the guide frame 45 is provided with a sliding groove, and the pull rope 44 is connected with the inner wall of the sliding groove in a sliding manner to limit the displacement of the pull rope 44 and ensure the stable use of the device.
The whole anti-falling device 4 achieves the effects that by arranging the anti-falling device 4, when the infusion tube 1 is connected, the lantern ring 46 is pulled towards the direction far away from the needle body 2, the lantern ring 46 immediately pulls the anti-falling frame 42 through the pull rope 44, the torsion spring 43 is stressed and deformed to generate elasticity, the infusion tube 1 is immediately sleeved on the needle body 2, after the connection is completed, the lantern ring 46 is loosened, the torsion spring 43 loses the constraint to drive the anti-falling frame 42 to reset, the anti-falling frame 42 is immediately sleeved on the anti-falling rod 41, when the pressure at the joint of the infusion tube 1 and the needle body 2 is overlarge in the infusion process, the anti-falling frame 42 is abutted against the anti-falling rod 41 to prevent the equipment from falling off, by arranging the anti-falling device 4, the connection between the infusion tube 1 and the needle body 2 is effectively established, the connection between the infusion tube 1 and the needle body 2 is prevented from being connected in a sleeved mode, the situation that the falling off easily occurs when the stress at the joint is overlarge, so as to reduce the failure rate of the equipment, the stability of the equipment is improved.
In addition, the specially designed plug cap with the flexible handle part and the hollow layer can safely and quickly replace infusion tubes with different liquid medicines after the puncture needle reaches the target depth and the target inclination angle by virtue of the detachable anti-falling device, and the method specifically comprises the following steps: the anticreep device 4 pull anticreep frame 42 and release the needle body 2 with the connection back of current transfer line 1 through, peg graft annular cock cap at needle body 2 top, thereby it is excessive to stop patient's body fluid, then treat that new transfer line 1 need load the time then directly reverse pull anticreep frame 42 with needle body 2 with new transfer line 1 be connected in place, because the cock cap edge has hollow layer in this in-process, consequently produce buoyancy in the liquid medicine and make the cock cap float, on the basis of the flexible strip as the stalk portion, make the cock cap follow the more smooth that the needle body 2 top breaks away from.
The above description is only a preferred embodiment of the present invention, and not intended to limit the present invention in other forms, and any person skilled in the art may apply the above modifications or changes to the equivalent embodiments with equivalent changes, without departing from the technical spirit of the present invention, and any simple modification, equivalent change and change made to the above embodiments according to the technical spirit of the present invention still belong to the protection scope of the technical spirit of the present invention.
Claims (5)
1. An ultrasonic-guided nerve block puncture needle with an external guide mechanism, which comprises a needle body (2) and a guide device (3), and is characterized in that: one end of the needle body (2) is sleeved with a transfusion tube (1), the guiding device (3) is arranged on one side of the needle body (2), the guiding device (3) comprises a positioning plate (34) and a magnetic sheet (31), an anti-falling device (4) is arranged on the surface of the transfusion tube (1), one end, far away from the transfusion tube (1), of the anti-falling device (4) is fixedly connected with the surface of the needle body (2), one end, facing the transfusion tube (1), on the needle body (2) is pluggable and connected with an annular plug cap, the outer side of the plug cap is connected to one end of a flexible strip, the other end of the flexible strip is fixed on the needle body (2), and the outer edge of the plug cap body is a hollow layer;
locating plate (34) cover is established on needle body (2), the inner wall of locating plate (34) rotates and is connected with spacing ball (33), the slide opening has been seted up on the surface of spacing ball (33), needle body (2) run through the slide opening and rather than inner wall sliding connection, magnetic sheet (31) are located one side of needle body (2) and place: the magnetic sheet fixing device is characterized in that the number of the magnetic sheets (31) is two, the two magnetic sheets (31) are symmetrically arranged by taking the needle body (2) as a symmetry axis, the upper surface of each magnetic sheet (31) is fixedly connected with a pull handle (36), the inner wall of each magnetic sheet (31) is inserted and slidably connected with a slide rod (37), the lower surface of each slide rod (37) is fixedly connected with a slide block (35), each slide block (35) is hemispherical, the upper surface of each slide block (35) is fixedly connected with a compression spring, one end of each compression spring, far away from each slide block (35), is fixedly connected with the surface of each magnetic sheet (31), one side, facing the slide block (35), of each positioning sheet (34) is equiangularly provided with a plurality of grooves in an annular shape, the lower surface of each magnetic sheet (31) is rotatably connected with two rollers (38) which are symmetrically arranged, the needle head is sleeved and fixedly connected with a magnetic ring (39), and the magnetic rings (31) and the magnetic rings (39) are mutually attracted, one side of the positioning piece (34) far away from the infusion tube (1) is fixedly connected with a plurality of adsorption pieces (32), and the adsorption pieces (32) are circumferentially arranged by taking the circle center of the positioning piece (34) as the center;
anticreep device (4) are including anticreep frame (42), anticreep frame (42) is rotated with one side that transfusion tube (1) is close to needle body (2) and is connected, the fixed surface of anticreep frame (42) is connected with torsion spring (43), the one end and transfusion tube (1) fixed connection of anticreep frame (42) are kept away from in torsion spring (43), the surface of needle body (2) is connected with bellied anticreep pole (41) that inclines down in the slant, the fixed surface of anticreep frame (42) is connected with stay cord (44), the one end fixedly connected with lantern ring (46) of anticreep frame (42) are kept away from in stay cord (44), lantern ring (46) cover is established on transfusion tube (1) and rather than sliding surface connection, the fixed surface of transfusion tube (1) is connected with and supplies stay cord (44) to pass sliding connection's leading truck (45).
2. An ultrasound-guided nerve block puncture needle with an external guide mechanism according to claim 1, wherein: seven pieces of the adsorption sheets (32) are provided.
3. An ultrasound-guided nerve block puncture needle with an external guide mechanism according to claim 2, wherein: the limiting ball (33) is made of a non-magnetic material.
4. An ultrasound-guided nerve block puncture needle with an external guide mechanism according to claim 3, wherein: each groove is 1/3 spherical.
5. An ultrasound-guided nerve block puncture needle with an external guide mechanism according to claim 4, wherein: the surface of the guide frame (45) is provided with a sliding groove, and the pull rope (44) is connected with the inner wall of the sliding groove in a sliding mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110779327.3A CN113499128B (en) | 2021-07-09 | 2021-07-09 | Ultrasonic guided nerve block puncture needle with external guiding mechanism |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110779327.3A CN113499128B (en) | 2021-07-09 | 2021-07-09 | Ultrasonic guided nerve block puncture needle with external guiding mechanism |
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| Publication Number | Publication Date |
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| CN113499128A true CN113499128A (en) | 2021-10-15 |
| CN113499128B CN113499128B (en) | 2024-02-23 |
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| CN202110779327.3A Active CN113499128B (en) | 2021-07-09 | 2021-07-09 | Ultrasonic guided nerve block puncture needle with external guiding mechanism |
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| CN112842488A (en) * | 2021-02-23 | 2021-05-28 | 西安交通大学医学院第一附属医院 | Intracardiac branch of academic or vocational study puncture positioner |
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| CN113499128B (en) | 2024-02-23 |
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